PTI Bearing Catalog - Norfolkbearings.com

Metric Sprockets
Taper Lock Bushed Type TL
ISO 12B, DIN 8187 - ISO/R 606
Single, Double, Triple
Standard and Hardened Teeth
Material: Steel C45 E
Drawing
Dimensions
Sprocket Sizes
12B
h1 11.1
h2 30.3
h3 49.8
L 10.8
Part No: 12B-21HTL-2517
12B = Chain Size
21 = Number of Teeth
H = Hardened Teeth
TL-2517 =TL Bushing Size
De Dp
d
De Dp
d
De Dp
De Dp d
De Dp
Dimensions in mm
Chain Size
3/4” x 7/16” Teeth D Single Double Triple
e D p
Part No. Type d H Part No. Type d H Part No. Type d H
12B
h1
H
L
h2
H
13 87.5 79.59 12B-13HTL-1210 1 60 25 — — — — — — — —
14 93.6 85.61 12B-14TL-1610 1 70 25 — — — — — — — —
15 99.8 91.63 12B-15HTL-1610 1 70 25 12B-2-15TL-1610 3 — 30.3 12B-3-15TL-1615 5 — 49.8
16 105.5 97.65 12B-16TL-1610 1 75 25 12B-2-16TL-1610 3 — 30.3 — — — —
17 111.5 103.67 12B-17HTL-1610 1 76 25 12B-2-17TL-1610 3 — 30.3 12B-3-17TL-2012 5 — 49.8
18 118.0 109.71 12B-18TL-2012 1 90 32 12B-2-18TL-2012 2 90 32 — — — —
19 124.2 115.75 12B-19HTL-2012 1 90 32 12B-2-19TL-2012 2 90 32 12B-3-19TL-2012 5 — 49.8
20 129.7 121.78 12B-20TL-2012 1 90 32 12B-2-20TL-2517 2 108 45 — — — —
21 136.0 127.82 12B-21HTL-2517 1 102 45 12B-2-21TL-2517 2 108 45 12B-3-21TL-2517 5 — 49.8
22 141.8 133.86 12B-22TL-2517 1 102 45 12B-2-22TL-2517 2 108 45 — — — —
23 149.0 139.90 12B-23HTL-2517 1 108 45 12B-2-23TL-2517 2 108 45 12B-3-23TL-2517 5 — 49.8
24 153.9 145.94 12B-24TL-2517 1 108 45 12B-2-24TL-2517 2 108 45 — — — —
25 160.0 152.00 12B-25HTL-2517 1 108 45 12B-2-25TL-2517 2 108 45 12B-3-25TL-2517 5 — 49.8
26 165.9 158.04 12B-26TL-2517 1 108 45 12B-2-26TL-2517 2 108 45 — — — —
27 172.3 164.00 12B-27HTL-2517 1 108 45 12B-2-27TL-2517 2 108 45 12B-3-27TL-3020 4 140 51
28 178.0 170.13 12B-28TL-2517 1 108 45 12B-2-28TL-2517 2 108 45 — — — —
30 190.5 182.25 12B-30HTL-2517 1 108 45 12B-2-30TL-2517 2 108 45 12B-3-30TL-3020 4 140 51
38 239.0 230.69 12B-38TL-2517 1 108 45 12B-2-38TL-3020 2 140 51 12B-3-38TL-3020 4 140 51
45 282.5 273.10 12B-45TL-2517 1 108 45 12B-2-45TL-3020 2 140 51 12B-3-45TL-3020 4 140 51
57 355.4 345.81 12B-57TL-2517 1 108 45 12B-2-57TL-3020 2 140 51 12B-3-57TL-3020 4 140 51
76 469.9 460.99 12B-76TL-2517 1 108 45 12B-2-76TL-3020 2 140 51 12B-3-76TL-3020 4 140 51
95 585.1 576.17 12B-95TL-2517 1 108 45 12B-2-95TL3020 2 140 51 — — — —
114 700.6 691.36 12B-114TL-2525 1 108 64 — — — — — — — —
Note: Shaded items with “H” in Part No. indicates Hardened Teeth.
P.T. International Corp.
352
L
h2
Type 1 Type 2 Type 3 Type 4 Type 5
L
h3
H
L
h3